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[1]王瑞廷,毛景文,任小华,等.煎茶岭硫化镍矿床矿石组分特征及其赋存状态[J].地球科学与环境学报,2005,27(01):34-38.
 WANG Rui-ting,MAO Jing-wen,REN Xiao-hua,et al.Ore composition and hosting condition in the Jianchaling sulfide nickel deposit , Shaanxi province[J].Journal of Earth Sciences and Environment,2005,27(01):34-38.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第27卷
期数:
2005年第01期
页码:
34-38
栏目:
出版日期:
2005-03-15

文章信息/Info

Title:
Ore composition and hosting condition in the Jianchaling sulfide nickel deposit , Shaanxi province
作者:
王瑞廷12毛景文13任小华2汪军谊2王小红4
1.中国地质大学地球科学与资源学院,北京100083;2.西北有色地质勘查局,陕西西安710054; 3.中国地质科学院矿产资源研究所,北京100037;4.长安大学地球科学与国土资源学院,陕西西安710054
Author(s):
WANG Rui-ting 12MAO Jing-wen13REN Xiao-hua2WANG Jun-yi2WANG Xiao-hong4
1. Faculty of geosciences and resources, China University of geosciences, Beijing 100083,China; 2. Bureau of geological exploration for non ferrous metals in northwest China, Xi’ an 710054,China; 3. Institute of mineral resources, Chinese Academy of geological sciences, Beijing 100037,China; 4. School of Earth Sciences and Resources Management, Chang’ an University, Xi’ an 710054,China
关键词:
硫化镍矿床矿石组分赋存状态煎茶岭
Keywords:
sulfide nickel deposit ore composition hosting condition Jianchaling
分类号:
P618.63
DOI:
-
文献标志码:
A
摘要:
采用高精度的新一代ICP-MS分析技术,依据新的研究思路和方法,在详细分析研究煎茶岭硫 化镍矿床矿石组分特征及其赋存状态的基础上,进一步探讨其成矿作用机制和成因类型。研究认为,煎 茶岭硫化镍矿床矿石主要组分为Ni,Cu,Co,Fe,S,PGE等,其高的Ni/Cu,低的Cu,PGE含量值反映该 矿床为高镁岩浆演化的产物。矿石可分为磁黄铁矿镍黄铁矿型和黄铁矿针镍矿辉镍矿型两类,并以 前者为主,表明该矿床的形成至少经历了早期岩浆成矿和晚期热液变质改造成矿两个阶段,应属于岩浆 熔离热液改造成因类型。矿石中的镍主要以镍黄铁矿、紫硫镍铁矿、针镍矿和辉镍矿等独立镍矿物存 在;镍有3种赋存形式,以硫化镍为主,硅酸镍、硫酸镍少量。在煎茶岭超基性岩上升侵位过程中,随着 岩浆的演化分异先于新元古代在岩体边缘或内部形成镍矿床,而后于印支—燕山期在岩体接触带形成 金矿床,它们是在统一的与幔源超基性岩有关的成矿系统中形成的具内在成因联系的成矿系列。
Abstract:
On the basis of reserching in composition feature and existing phase of ores from the Jianchaling sulfide nickel de- posit by means of new and high-precision ICP-MS analysis technique, its mechanism and type of metallogenesis is futher studied with new thoughts and methods. The main composition of ore in the Jianchaling sulfide nickel deposit includes Ni, Cu,Co,Fe,S,PGE, and so on, its high Ni/Cu value and lower content of Cu,PGE indicate that the formation of the nickel deposit resulted from the evolution of high-Mg magma. The nickel deposit has two typed ores, the pyrrhotite-pentlandite type and pyrite-millerite-polydymite type, and the first type is predominant, which proved that the formation of the nickel deposit at least experienced the former magmatic metallogensis and the later hydrothermal metamorphism reconstructed met- allogensis two periods. Therefore, the deposit should be magma melt-hydrothermal reconstructed type. The nickel in ores exsist mostly by simple nickel minerals, such as pentlandite, violarite, millerite and polydymite, and its hosting condition is sulfide-, silisic-, and sulfate nickel three shapes. The first is dominant. During the intrusion process of the Jianchaling ultra- basic rock, the nickel deposit is formed inside or in the margin of rockbody in Neo-Proterozoic, and subsequently the gold deposit was formed in the contacting belt of rockbodies in the Indosinian-Yanshanian time companying the evolution and dif- ferentiation of magma. It is a metallogenic series that have inner genic relation in the uniform metallogenic system involved with mantle-sourced ultra-basic rock.

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备注/Memo

备注/Memo:
[收稿日期]2004-03-12
[基金项目]国家重大基础研究规划项目(1999043211);西北有色地勘局人才基金项目
[作者简介]王瑞廷(1969-),男,陕西杨凌人,西北有色地质勘查局高级工程师,中国地质大学(北京)博士后,从事矿床地球化学和矿产勘查预测研究。
更新日期/Last Update: 1900-01-01